New
#11
OP, there's a GTX 570 with support for up to 3 displays.
No need to SLI just to run 3 displays.
Here:
Newegg.com - EVGA 012-P3-1571-KR GeForce GTX 570 HD w/Display-Port (Fermi) 1280MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card